Sanitary preserving can



May 2, 1933. H, KARL 1,906,796

SANITARY PRESERVING CAN Filed Jan. 30, 1928 INVENT R M BY A TTORNEY Patented May 2, 1933 recent 7? ICE HEINRICH KARL, OF JERSEY CITY, NEW JERSEY SANITARY PRESERVING CAN" Application filed January 30, 1928. Serial No. 250,570.

It is known that eatables coming in contact with binders, such as solder, will be spoiled and improper for consumption. Especially the flux used in soldering is especially adapted for deteriorating the eatables. Although the object of the invention can be employed with a large variety of preserving cans, I show it in connection with a can that is equipped with the known rim 10 that is to be stripped off when the can is to be opened and in this connection the packing material serves at the same time for covering the furrow or furrows made in said strip of metal so as to prevent the solder or other binding material to spread over said furrows and thus preventing the strengthening of that part.

In the drawing which shows forms of cans with detachable rims the Fig. 1 shows a closed can in elevation;

Fig. 2 shows the same can with part of the rim stripped off; and

Fig. 3 shows a part of another can in section whereby the rim is shown as a modification from that shown in Figs. 1 and 2 and which necessitates still the bending towards the vertical wall of the can body.

In conformity with the object of the invention a packing material 23 is placed suitably between the lid (the rim thereof) ant the can body itself so as to separate the catables from those parts that are to be or are soldered or otherwise united through other binding materials as are known in the art. The packing material may be simply a thread of cotton or of like material and it is in so far preferable to rubber or other materials because it would not deteriorate and affect the eatables in the can. There is a twofold purpose in using said packing ma terial. If, for instance, that sort of can is used as illustrated in the drawing where the rim of the lid or a strip thereof can be detached from the can on account of a furrow or of several of them made along a certain line or certain lines on said rim the packing material 23 when placed so as to cover said furrow or furrows will prevent the solder or other binder from nowing into the furrows.

In Fig. 3 it is shown that the furrow which is indicated by 4 is made on the inner side of the lid 2 and along the line where the rim begins which is bent downwardly. The rim 36 as seen is flaring and thereby kept apart from the can body. A space 6 is thus left for the purpose to insert, first, the packing material 23 and for pouring in the solder or other binding material where by the can must then be turned upside down. The packing material 23, however, may be placed before the lid is put on the can body 1. Finally the rim of the lid of Fig. 3 is to be bent towards the can body in such manner that it takes the position as shown by the dotted lines. The can shown in Figs. 1 and 2 shows a little different shape of the rim compared with that of Fig. 3. In Figs. 1 and 2 the furrow 4 is made along a line that is somewhat distanced from the upper edge of the can 1 and consequently the packing material is to be put so between the rim 3a and the can body 1 that it covers the furrow 4. In Fig. 2 it is shown that the detachable part 5 is partly torn off the can whereby the tongue -7 22 serves for being gripped by the fingers or by some tool for permitting the tearing off of the strip 5. 34 indicates where the solder or other binder adheres to the metal of v, the strip 5 as well as to that of the vertical wall of the can body. It is shown that also in connection with this modification the packing material prevents the spreading of the solder or other binder to the furrow 4.... and it prevents also the contamination of 35 the contents of the can with said binder.

What I claim is:

In a sanitary can or other container of the kind in which the cover has apart that is furrowed along a single line and in a manner that said part can be detached from the cover with the fingers along the line of said furrow, whereby said cover with said part is united with the can by means of a binder applied to said part and the outer side of the can or other container body and adapted to hermetically close the can or other container, a packing material placed in such manner between said part and the container body as to prevent the contents thereof from coming into contact with the binder and, on the other hand preventing the binder from flowing or spreading past the limit formed by said packing material. HEINRICH KARL. 

